Tool



7 Feb. 18, 1930. R. s. PEARSON 1,747,790

TOOL Filed June 10, 1927 Qrwenr fi (5%551 770 5, flarsm Patented Feb.18, 1930 PATENTF ROY S. PEARSON, OFOHICAGO, ILLINOIS 'roo n Applicationfiled June 10,

This invention relates to improvements in toolsparticularly adapted foruse in connection withthe fitting of window'lifts, strap hinges, doorescutcheons, lock plates, etc., and one of the objects of my inventionis the provision of a tool of this character which is specially adaptedfor use in temporarily retaining such articles in position while thefastening members are being attached thereto or secured in position.

Another object of the invention is the provisionof a. tool of the abovecharacter which is readily adapted for use in scribing mortises byholding the hardware in place such as lock plates, strike plates, pivotplates and the like while the outline of the mortise is being Fig. 1 1sa longitudinal central section.

taken through a tool embodying my invention' Fig. 2 is an end elevationof the improved tool shown in Fig. 1;

Fig. 3 is a section taken on line 7-7 of Fig. 1;

Fig. 4 is a section taken on line 8-8 of Fig. 1.

Upon referring to the drawings, it will be evident that I have shown atool which em- 1927. Serial No. 197,980.

bodies my invention and is designated generally by the referencecharacter30. The tool 30 preferably comprises a handle 31 which may beformed of any suitable material and is preferably provided with a cen- Qtral bore 36, the bore 36 being formed with a portion-37 of reduceddiameterwhich slidably journals one end ofa pin 38 that hasits other endslidably journaledin the larger portion of the bore 36. Screw-threadedinto one end of the pin 38 is a pin40which is provided with a knurledhead 41atits outer end whereby it maybe rotated to longitudinallydisplace the pin 38. As "shown, the head 41 abuts against thejouter sideof an apertured disc 42 which is secured to the handle member 31 byscrews 44, or the equivalent. A. collar 45rigidly secured to the pin 40abuts against the inner side ofthe disc 42 and cooperates with the head41 to prevent angular displacement, of the pin 40. The pin 38 is heldagainst rotation relative to the handle 31 by a lug 47 which rides in aslot 48 formed in the handle, the lug 47 being preferably formedintegral with "the 7 pin 38. One end of the pin 38, is pointed and ispreferably provided with screw-threads 49 so that the tool 38 may beused in substantially the same manner as similar tools. In practice, adouble thread is preferably provided upon the pointed end of the pin 38.The pin 38 may be brought into a plus rality of adjusted positions withrespect to the handle 31 so as to have the screwthreaded end 49 projectany desired distance so from the handle member 31. This is advantageousin that, in some instances, it is only necessary to-have thescrew-threaded end 49 project a. relatively small distance from thehandle 31 as otherwise it would tend to mar the woodwork or to make toolarge holes therein. When the screw-threaded point 49 of the pin 38 isto be brought into an adjusted position with the handle 31, it is onlynecessary to manipulate the head 41 of the pin in such manner that thepin 38 will be longitudinally displaced in one direction or the other asthe case may be. As illustrated in Fig. 1, the handle member 31 may bereinforced by a metallic ferrule 31, or the equivalent. 7

When any of the above described devices is to be employed to temporarilysecure a striker plate, escutcheon plate, or any other piece of hardwareto an object, the piece of hardware is correctly positioned upon theobject and the threaded point on the tool is in serted-throughanaperture, or the equivalent, provided in the hardware, the threadedpoint being screwed into theobject. It will be readily understood thatit is advantageous to have a double screw-thread as relatively few turnsof the handle are required to drive the point into the object so thatthe hardware will be clamped between the object and the shOllderprovideda-t the base of the threaded point. Of cOllrse, thethreaded point forms a hole in the object, in which hole, the screw, orthe equivalent, may be quickly driven when the threaded point has beenwithdrawn therefrom.

Having thus described my invention, it is obvious. that variousimmaterial modifications may be made inthe same without departing fromthe spirit of my invention; hence I donot wish to be understood aslimit,-

, ingrmyself to the exact form, construction,

arrangement and combination of parts heresigned my name.

ROY S. PEARSON.

in shown and described, or uses mentioned.

WhatI claim as new and desire to secure by Letters Patent is: c

1. A device of the kind described .COlnpriS- ing a handle, a pinslidably mounted in the handle and provided with a pointed screwthreadedend adapted to project from said handle, a second pin rotatably mounted;inthe handle and screw-threaded into the firstmentioned pin wherebyrotation. of said sec:

ond pin 'will' result in longitudinal displace mentof thefirst-mentioned pin, and means for preventing longitudinal displacementof said second pin.

2. A device of the kind described. comprising'a handle, a pin slidablymounted in the handle and provided with a pointed screw threaded endadapted to project from said handle, a secondv pin rotatably mounted inthe handle and screw threaded into the first mentioned pin' wherebyrotation of said second pin will result in longitudinal displace ment ofthe first mentioned pin, means for preventing therotation of said firstmen.- tioned pin, and means for preventing longitudinal displacement ofsaid second pin.

3; A device of the kind described,c'omprising a handle having a passagetherethrough with a groove communicating with said passage, apinslidably mounted in said passage having 'a tool at one end thereofnormally projecting from said handle, a member en,-

